[INFO] fetching crate packetry 0.4.0...
[INFO] checking packetry-0.4.0 against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] extracting crate packetry 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate packetry 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate packetry 0.4.0
[INFO] tweaked toml for crates.io crate packetry 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate packetry 0.4.0 on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate packetry 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "fca0de1c0d10fead9af595188cff10cdf0da3599692b2055e3a933063714f887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fca0de1c0d10fead9af595188cff10cdf0da3599692b2055e3a933063714f887", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "165a9a5b46c8248466989cd7c41e06ab8757e7402a0cb12361d5074c6aac5e82", kill_on_drop: false }`
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[INFO] [stderr]    Compiling packetry v0.4.0 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:302:12
[INFO] [stdout]     |
[INFO] [stdout] 302 | pub struct Device {
[INFO] [stdout]     |            ^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/capture.rs:301:1
[INFO] [stdout]     |
[INFO] [stdout] 301 | / #[repr(C)]
[INFO] [stdout] 302 | | pub struct Device {
[INFO] [stdout] 303 | |     pub address: DeviceAddr,
[INFO] [stdout] 304 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:309:16
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub struct Endpoint(u64);
[INFO] [stdout]     |                ^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:335:16
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub struct GroupIndexEntry(u64);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 |   byte_type!(DeviceAddr);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 137 |   byte_type!(DeviceField);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 138 |   byte_type!(StringId);
[INFO] [stdout]     |   -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 139 |   byte_type!(ConfigNum);
[INFO] [stdout]     |   --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 140 |   byte_type!(ConfigField);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 141 |   byte_type!(InterfaceNum);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 142 |   byte_type!(InterfaceAlt);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 143 |   byte_type!(InterfaceField);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 144 |   byte_type!(EndpointNum);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 145 |   byte_type!(EndpointField);
[INFO] [stdout]     |   ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 146 |   byte_type!(EndpointAddr);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 147 |   byte_type!(EndpointAttr);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 148 |   byte_type!(IfaceAssocField);
[INFO] [stdout]     |   --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 149 |   byte_type!(HidField);
[INFO] [stdout]     |   -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 150 |   byte_type!(ClassId);
[INFO] [stdout]     |   ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 151 |   byte_type!(SubclassId);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 152 |   byte_type!(ProtocolId);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:237:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct BCDVersion {
[INFO] [stdout]     |            ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:236:1
[INFO] [stdout]     |
[INFO] [stdout] 236 | / #[repr(C)]
[INFO] [stdout] 237 | | pub struct BCDVersion {
[INFO] [stdout] 238 | |     pub minor: u8,
[INFO] [stdout] 239 | |     pub major: u8,
[INFO] [stdout] 240 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:384:16
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub struct RequestTypeFields(u8);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:637:12
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub struct DeviceDescriptor {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:636:1
[INFO] [stdout]     |
[INFO] [stdout] 636 | / #[repr(C)]
[INFO] [stdout] 637 | | pub struct DeviceDescriptor {
[INFO] [stdout] 638 | |     pub length: u8,
[INFO] [stdout] 639 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 651 | |     pub num_configurations: u8
[INFO] [stdout] 652 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:696:1
[INFO] [stdout]     |
[INFO] [stdout] 696 | / #[repr(C, packed)]
[INFO] [stdout] 697 | | pub struct ConfigDescriptor {
[INFO] [stdout] 698 | |     pub length: u8,
[INFO] [stdout] 699 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 705 | |     pub max_power: u8
[INFO] [stdout] 706 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:733:1
[INFO] [stdout]     |
[INFO] [stdout] 733 | / #[repr(C, packed)]
[INFO] [stdout] 734 | | pub struct InterfaceAssociationDescriptor {
[INFO] [stdout] 735 | |     pub length: u8,
[INFO] [stdout] 736 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 742 | |     pub function: u8,
[INFO] [stdout] 743 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:777:1
[INFO] [stdout]     |
[INFO] [stdout] 777 | / #[repr(C, packed)]
[INFO] [stdout] 778 | | pub struct InterfaceDescriptor {
[INFO] [stdout] 779 | |     pub length: u8,
[INFO] [stdout] 780 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 787 | |     pub interface_str_id: StringId,
[INFO] [stdout] 788 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:822:1
[INFO] [stdout]     |
[INFO] [stdout] 822 | / #[repr(C, packed)]
[INFO] [stdout] 823 | | pub struct EndpointDescriptor {
[INFO] [stdout] 824 | |     pub length: u8,
[INFO] [stdout] 825 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 829 | |     pub interval: u8,
[INFO] [stdout] 830 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/item_widget.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn expander(&self) -> RefMut<Expander> {
[INFO] [stdout]    |                     ^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn expander(&self) -> RefMut<'_, Expander> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/pcap.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn next(&mut self) -> Option<Result<(RawPcapPacket, u64), Error>> {
[INFO] [stdout]    |                 ^^^^^^^^^                    ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn next(&mut self) -> Option<Result<(RawPcapPacket<'_>, u64), Error>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:302:12
[INFO] [stdout]     |
[INFO] [stdout] 302 | pub struct Device {
[INFO] [stdout]     |            ^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/capture.rs:301:1
[INFO] [stdout]     |
[INFO] [stdout] 301 | / #[repr(C)]
[INFO] [stdout] 302 | | pub struct Device {
[INFO] [stdout] 303 | |     pub address: DeviceAddr,
[INFO] [stdout] 304 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:309:16
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub struct Endpoint(u64);
[INFO] [stdout]     |                ^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/capture.rs:335:16
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub struct GroupIndexEntry(u64);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/data_stream.rs:236:12
[INFO] [stdout]     |
[INFO] [stdout] 236 |     struct Foo {
[INFO] [stdout]     |            ^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/data_stream.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | /     #[repr(C)]
[INFO] [stdout] 236 | |     struct Foo {
[INFO] [stdout] 237 | |         bar: u32,
[INFO] [stdout] 238 | |         baz: u32,
[INFO] [stdout] 239 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 |   byte_type!(DeviceAddr);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 137 |   byte_type!(DeviceField);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 138 |   byte_type!(StringId);
[INFO] [stdout]     |   -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 139 |   byte_type!(ConfigNum);
[INFO] [stdout]     |   --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 140 |   byte_type!(ConfigField);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 141 |   byte_type!(InterfaceNum);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 142 |   byte_type!(InterfaceAlt);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 143 |   byte_type!(InterfaceField);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 144 |   byte_type!(EndpointNum);
[INFO] [stdout]     |   ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 145 |   byte_type!(EndpointField);
[INFO] [stdout]     |   ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 146 |   byte_type!(EndpointAddr);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 147 |   byte_type!(EndpointAttr);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 148 |   byte_type!(IfaceAssocField);
[INFO] [stdout]     |   --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 149 |   byte_type!(HidField);
[INFO] [stdout]     |   -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 150 |   byte_type!(ClassId);
[INFO] [stdout]     |   ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 151 |   byte_type!(SubclassId);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         #[repr(transparent)]
[INFO] [stdout] 132 | |         pub struct $name(pub u8);
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 152 |   byte_type!(ProtocolId);
[INFO] [stdout]     |   ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `byte_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:237:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct BCDVersion {
[INFO] [stdout]     |            ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:236:1
[INFO] [stdout]     |
[INFO] [stdout] 236 | / #[repr(C)]
[INFO] [stdout] 237 | | pub struct BCDVersion {
[INFO] [stdout] 238 | |     pub minor: u8,
[INFO] [stdout] 239 | |     pub major: u8,
[INFO] [stdout] 240 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:384:16
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub struct RequestTypeFields(u8);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/usb.rs:637:12
[INFO] [stdout]     |
[INFO] [stdout] 637 | pub struct DeviceDescriptor {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:636:1
[INFO] [stdout]     |
[INFO] [stdout] 636 | / #[repr(C)]
[INFO] [stdout] 637 | | pub struct DeviceDescriptor {
[INFO] [stdout] 638 | |     pub length: u8,
[INFO] [stdout] 639 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 651 | |     pub num_configurations: u8
[INFO] [stdout] 652 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:696:1
[INFO] [stdout]     |
[INFO] [stdout] 696 | / #[repr(C, packed)]
[INFO] [stdout] 697 | | pub struct ConfigDescriptor {
[INFO] [stdout] 698 | |     pub length: u8,
[INFO] [stdout] 699 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 705 | |     pub max_power: u8
[INFO] [stdout] 706 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:733:1
[INFO] [stdout]     |
[INFO] [stdout] 733 | / #[repr(C, packed)]
[INFO] [stdout] 734 | | pub struct InterfaceAssociationDescriptor {
[INFO] [stdout] 735 | |     pub length: u8,
[INFO] [stdout] 736 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 742 | |     pub function: u8,
[INFO] [stdout] 743 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:777:1
[INFO] [stdout]     |
[INFO] [stdout] 777 | / #[repr(C, packed)]
[INFO] [stdout] 778 | | pub struct InterfaceDescriptor {
[INFO] [stdout] 779 | |     pub length: u8,
[INFO] [stdout] 780 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 787 | |     pub interface_str_id: StringId,
[INFO] [stdout] 788 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/usb.rs:822:1
[INFO] [stdout]     |
[INFO] [stdout] 822 | / #[repr(C, packed)]
[INFO] [stdout] 823 | | pub struct EndpointDescriptor {
[INFO] [stdout] 824 | |     pub length: u8,
[INFO] [stdout] 825 | |     pub descriptor_type: u8,
[INFO] [stdout] ...   |
[INFO] [stdout] 829 | |     pub interval: u8,
[INFO] [stdout] 830 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/item_widget.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn expander(&self) -> RefMut<Expander> {
[INFO] [stdout]    |                     ^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn expander(&self) -> RefMut<'_, Expander> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/pcap.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn next(&mut self) -> Option<Result<(RawPcapPacket, u64), Error>> {
[INFO] [stdout]    |                 ^^^^^^^^^                    ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn next(&mut self) -> Option<Result<(RawPcapPacket<'_>, u64), Error>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 44s
[INFO] running `Command { std: "docker" "inspect" "165a9a5b46c8248466989cd7c41e06ab8757e7402a0cb12361d5074c6aac5e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165a9a5b46c8248466989cd7c41e06ab8757e7402a0cb12361d5074c6aac5e82", kill_on_drop: false }`
[INFO] [stdout] 165a9a5b46c8248466989cd7c41e06ab8757e7402a0cb12361d5074c6aac5e82
